MANUAL toshiba[001-020]

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PRINTED IN JAPAN, May.,2004 ToMo
Indoor Unit
<4-way Air Discharge Cassette Type>
MMU-AP0091H, AP0121H, AP0151H,
MMU-AP0181H, AP0241H, AP0271H,
MMU-AP0301H, AP0361H, AP0481H
MMU-AP0561H
<2-way Air Discharge Cassette Type>
MMU-AP0071WH, AP0091WH, AP0121WH,
MMU-AP0151WH, AP0181WH, AP0241WH,
MMU-AP0271WH, AP0301WH
MMU-AP0481WH (CHINA market only)
<1-way Air Discharge Cassette Type>
MMU-AP0071YH, AP0091YH, AP0121YH,
MMU-AP0151SH, AP0181SH, AP0241SH
<Concealed Duct Standard Type>
MMD-AP0071BH, AP0091BH, AP0121BH,
MMD-AP0151BH, AP0181BH, AP0241BH,
MMD-AP0271BH, AP0301BH, AP0361BH,
MMD-AP0481BH, AP0561BH
<Concealed Duct High Static Pressure Type>
MMD-AP0181H, AP0241H, AP0271H,
MMD-AP0361H, AP0481H, AP0721H,
MMD-AP0961H
<Under Ceiling Type>
MMC-AP0151H, AP0181H, AP0241H,
MMC-AP0271H, AP0361H, AP0481H
<High Wall Type>
MMK-AP0071H, AP0091H, AP0121H,
MMK-AP0151H, AP0181H, AP0241H
<Floor Standing Cabinet Type>
MML-AP0071H, AP0091H, AP0121H,
MML-AP0151H, AP0181H, AP0241H
<Floor Standing Concealed Type>
MML-AP0071BH, AP0091BH, AP0121BH,
MML-AP0151BH, AP0181BH, AP0241BH
<Floor Standing Type>
MMF-AP0151H, AP0181H, AP0241H
MMF-AP0271H, AP0361H, AP0481H
MMF-AP0561H
Outdoor Unit
Cooling Only Model
<Inverter Unit>
MMY-MAP0501T8, MAP0601T8
MMY-MAP0801T8, MAP1001T8
MMY-MAP1201T8
Heat Pump Model
<Inverter Unit>
MMY-MAP0501HT8, MAP0601HT8
MMY-MAP0801HT8, MAP1001HT8
MMY-MAP1201HT8
Heat Pump Model
<Inverter Unit>
MMY-MAP0501HT7, MAP0601HT7
MMY-MAP0801HT7, MAP1001HT7
MMY-MAP1201HT7
SERVICE MANUAL
WARNINGS ON REFRIGERANT LEAKAGE
Outdoor unit
e.g.,
charged amount (15kg)
e.g., charged
amount (10kg)
Indoor unit
Room A Room B Room C Room D Room E Room F
For the amount of charge in this example:
The possible amount of leaked refrigerant gas in
rooms A, B and C is 10kg.
The possible amount of leaked refrigerant gas in
rooms D, E and F is 15kg.
NOTE : 2
The standards for minimum room volume are as
follows.
(1) No partition (shaded portion)
Outdoor unit
Refrigerant piping
Indoor unit
(2) When there is an effective opening with the
adjacent room for ventilation of leaking refrigerant
gas (opening without a door, or an opening 0.15%
or larger than the respective floor spaces at the
top or bottom of the door).
(3) If an indoor unit is installed in each partitioned
room and the refrigerant tubing is interconnected,
the smallest room of course becomes the object.
But when a mechanical ventilation is installed
interlocked with a gas leakage detector in the
smallest room where the density limit is exceeded,
the volume of the next smallest room becomes the
object.
Outdoor unit
Refrigerant piping
Indoor unit
Very
small
room
Small
room
Medium
room Large room
Mechanical ventilation device - Gas leak detector
NOTE 3 :
The minimum indoor floor area compared with the
amount of refrigerant is roughly as follows:
(When the ceiling is 2.7m high)
0
5
10
10 20 30
15
20
25
30
35
40
Range below the 
density limit
of 0.3 kg/m³
(countermeasures
not needed)
Range above 
the density limit
of 0.3 kg/m³
(countermeasures
needed)
Total amount of refrigerant kg
M
in
. i
nd
oo
r 
flo
or
 a
re
a
m²
Check of Concentration Limit
The room in which the air conditioner is to be
installed requires a design that in the event of
refrigerant gas leaking out, its concentration will
not exceed a set limit.
The refrigerant R410A which is used in the air
conditioner is safe, without the toxicity or
combustibility of ammonia, and is not restricted by
laws to be imposed which protect the ozone layer.
However, since it contains more than air, it poses the
risk of suffocation if its concentration should rise
excessively. Suffocation from leakage of R410A is
almost non-existent. With the recent increase in the
number of high concentration buildings, however, the
installation of multi air conditioner systems is on the
increase because of the need for effective use of floor
space, individual control, energy conservation by
curtailing heat and carrying power etc.
Most importantly, the multi air conditioner system is
able to replenish a large amount of refrigerant
compared with conventional individual air conditioners.
If a single unit of the multi conditioner system is to be
installed in a small room, select a suitable model and
installation procedure so that if the refrigerant
accidentally leaks out, its concentration does not
reach the limit (and in the event of an emergency,
measures can be made before injury can occur).
In a room where the concentration may exceed the
limit, create an opening with adjacent rooms, or install
mechanical ventilation combined with a gas leak
detection device.
The concentration is as given below.
Total amount of refrigerant (kg)
Min. volume of the indoor unit installed room (m³)
≤ Concentration limit (kg/m³)
The concentration limit of R410A which is used in multi
air conditioners is 0.3kg/m³.
NOTE 1 :
If there are 2 or more refrigerating systems in a single
refrigerating device, the amounts of refrigerant should
be as charged in each independent device.
Important
NOTE
A direct current motor is adopted for indoor fan motor in the Concealed Duct Standard Type air conditioner.
Caused from its characteristics, a current limit works on the direct current motor. When replacing the high-
performance filter or when opening the service board, be sure to stop the fan. If an above action is executed
during the fan operation, the protective control works to stop the unit operation, and the check code “P12”
may be issued. However it is not a trouble. When the desired operation has finished, be sure to reset the
system to clear “P12” error code using the leak breaker of the indoor unit. Then push the operation stop
button of the remote controller to return to the usual operation.
CONTENTS
SAFETY CAUTION ............................................................................................ 4
1. OUTLINE .................................................................................................. 10
2. WIRING DIAGRAM................................................................................... 13
3. PARTS RATING........................................................................................ 26
4. REFRIGERANT PIPING SYSTEMATIC DRAWING ................................. 56
5. COMBINED REFRIGERANT PIPES SYSTEMATIC DRAWING .............. 59
6. CONTROL OUTLINE................................................................................ 64
7. APPLIED CONTROL ................................................................................ 74
8. TEST OPERATION ................................................................................... 88
9. TROUBLESHOOTING ............................................................................ 128
10. CONFIGURATION OF CONTROL CIRCUIT .......................................... 214
11. BACKUP OPERATIONS (EMERGENCY OPERATION) ........................ 228
12. OIL LEVEL JUDGMENT DISPLAY ........................................................ 233
13. REFRIGERANT RECOVERY
WHEN REPLACING THE COMPRESSOR ............................................ 234
14. LEAKAGE/CLOGGING OF OIL-EQUALIZATION CIRCUIT .................. 240
15. REPLACING COMPRESSOR ................................................................ 242
16. REOLACING METHOD OF PARTS ....................................................... 249
17. P.C. BOARD EXCHANGE PROCEDURES ............................................ 259
4
SAFETY CAUTION
The important contents concerned to the safety are described on the product itself and on this Service Manual.
Please read this Service Manual after understanding the described items thoroughly in the following contents
(Indications/Illustrated marks), and keep them.
[Explanation of indications]
Indication
 DANGER
 WARNING
 CAUTION
Explanation
Indicates contents assumed that an imminent danger causing a death or serious injury of
the repair engineers and the third parties when an incorrect work has beenexecuted.
Indicates possibilities assumed that a danger causing a death or serious injury of the
repair engineers, the third parties, and the users due to troubles of the product after work
when an incorrect work has been executed.
Indicates contents assumed that an injury or property damage (∗ ) may be caused on the
repair engineers, the third parties, and the users due to troubles of the product after work
when an incorrect work has been executed.
∗ Property damage : Enlarged damage concerned to property, furniture, and domestic animal/pet
[Explanation of illustrated marks]
Mark Explanation
Indicates prohibited items (Forbidden items to do)
The sentences near an illustrated mark describe the concrete prohibited contents.
Indicates mandatory items (Compulsory items to do)
The sentences near an illustrated mark describe the concrete mandatory contents.
Indicates cautions (including danger/warning)
The sentences or illustration near or in an illustrated mark describe the concrete cautious contents.
[Confirmation of warning label on the main unit]
Confirm that labels are indicated on the specified positions
(Refer to the Parts disassembly diagram (Outdoor unit).)
If removing the label during parts replace, stick it as the original.
Turn “OFF” the breaker before removing the front panel and cabinet, otherwise an electric
shock is caused by high voltage resulted in a death or injury.
During operation, a high voltage with 400V or higher of circuit (∗ ) at secondary circuit of the high-
voltage transformer is applied.
If touching a high voltage with the naked hands or body, an electric shock is caused even if using an
electric insulator.
∗ : For details, refer to the electric wiring diagram.
When removing the front panel or cabinet, execute short-circuit and discharge between high-
voltage capacitor terminals.
If discharge is not executed, an electric shock is caused by high voltage resulted in a death or injury.
After turning off the breaker, high voltage also keeps to apply to the high-voltage capacitor.
Do not turn on the breaker under condition that the front panel and cabinet are removed.
An electric shock is caused by high voltage resulted in a death or injury.
 DANGER
Turn off breaker.
Execute discharge
between terminals.
Prohibition
5
Before troubleshooting or repair work, check the earth wire is connected to the earth
terminals of the main unit, otherwise an electric shock is caused when a leak occurs.
If the earth wire is not correctly connected, contact an electric engineer for rework.
Do not modify the products.
Do not also disassemble or modify the parts. It may cause a fire, electric shock or injury.
For spare parts, use those specified (∗∗∗∗∗ ).
If unspecified parts are used, a fire or electric shock may be caused.
∗ : For details, refer to the parts list.
Before troubleshooting or repair work, do not bring a third party (a child, etc.) except
the repair engineers close to the equipment.
It causes an injury with tools or disassembled parts.
Please inform the users so that the third party (a child, etc.) does not approach the equipment.
Connect the cut-off lead cables with crimp contact, etc, put the closed end side
upward and then apply a water-cut method, otherwise a leak or production of fire is
caused at the users’ side.
When repairing the refrigerating cycle, take the following measures.
1) Be attentive to fire around the cycle. When using a gas stove, etc, be sure to put out fire
before work; otherwise the oil mixed with refrigerant gas may catch fire.
2) Do not use a welder in the closed room. When using it without ventilation, carbon
monoxide poisoning may be caused.
3) Do not bring inflammables close to the refrigerant cycle, otherwise fire of the welder may
catch the inflammables.
Check the used refrigerant name and use tools and materials of the parts which
match with it.
For the products which use R410A refrigerant, the refrigerant name is indicated at a
position on the outdoor unit where is easy to see. To prevent miss-charging, the route of the
service port is changed from one of the former R22.
For an air conditioner which uses R410A, never use other refrigerant than R410A.
For an air conditioner which uses other refrigerant (R22, etc.), never use R410A.
If different types of refrigerant are mixed, abnormal high pressure generates in the refriger-
ating cycle and an injury due to breakage may be caused.
Do not charge refrigerant additionally.
If charging refrigerant additionally when refrigerant gas leaks, the refrigerant composition in
the refrigerating cycle changes resulted in change of air conditioner characteristics or
refrigerant over the specified standard amount is charged and an abnormal high pressure is
applied to the inside of the refrigerating cycle resulted in cause of breakage or injury.
Therefore if the refrigerant gas leaks, recover the refrigerant in the air conditioner, execute
vacuuming, and then newly recharge the specified amount of liquid refrigerant. In this time,
never charge the refrigerant over the specified amount.
When recharging the refrigerant in the refrigerating cycle, do not mix the refrigerant
or air other than R410A into the specified refrigerant.
If air or others is mixed with the refrigerant, abnormal high pressure generates in the
refrigerating cycle resulted in cause of injury due to breakage.
After installation work, check the refrigerant gas does not leak.
If the refrigerant gas leaks in the room, poisonous gas generates when gas touches to fire
such as fan heater, stove or cocking stove though the refrigerant gas itself is innocuous.
Never recover the refrigerant into the outdoor unit.
When the equipment is moved or repaired, be sure to recover the refrigerant with recover-
ing device. The refrigerant cannot be recovered in the outdoor unit; otherwise a serious
accident such as breakage or injury is caused.
After repair work, surely assemble the disassembled parts, and connect and lead the
removed cables as before. Perform the work so that the cabinet or panel does not
catch the inner cables.
If incorrect assembly or incorrect cable connection was done, a disaster such as a leak or
fire is caused at user’s side.
 WARNING
Check earth wires.
Prohibition of modification.
Use specified parts.
Do not bring a child
close to the equipment.
Insulating measures
No fire
Refrigerant
Assembly/Cabling
6
After the work has finished, be sure to use an insulation tester set (500V mugger) to
check the resistance is 2MΩΩΩΩΩ or more between the charge section and the non-charge
metal section (Earth position).
If the resistance value is low, a disaster such as a leak or electric shock is caused at user’s
side.
When the refrigerant gas leaks during work, execute ventilation.
If the refrigerant gas touches to a fire, poisonous gas generates. A case of leakage of the
refrigerant and the closed room full with gas is dangerous because a shortage of oxygen
occurs. Be sure to execute ventilation.
When checking the circuit inevitably under condition of the power-ON, use rubber
gloves and others not to touch to the charging section.
If touching to the charging section, an electric shock may be caused.
When the refrigerant gas leaks, find up the leaked position and repair it surely.
If the leaked position cannot be found up and the repair work is interrupted, pump-down
and tighten the service valve, otherwise the refrigerant gas may leak into the room.
The poisonous gas generates when gas touches to fire such as fan heater, stove or cocking
stove though the refrigerant gas itself is innocuous.
When installing equipment which includes a large amount of charged refrigerant such
as a multi air conditioner in a sub-room, it is necessary that the density does not the
limit even if the refrigerant leaks.
If the refrigerant leaks and exceeds the limit density, an accident of shortage of oxygen is
caused.
For the installation/moving/reinstallation work, follow to the Installation Manual.
If an incorrect installationis done, a trouble of the refrigerating cycle, water leak, electric
shock or fire is caused.
After repair work has finished, check there is no trouble.
If check is not executed, a fire, electric shock or injury may be caused. For a check, turn off
the power breaker.
After repair work (installation of front panel and cabinet) has finished, execute a test
run to check there is no generation of smoke or abnormal sound.
If check is not executed, a fire or an electric shock is caused. Before test run, install the
front panel and cabinet.
Check the following items after reinstallation.
1) The earth wire is correctly connected.
2) The power cord is not caught in the product.
3) There is no inclination or unsteadiness and the installation is stable.
If check is not executed, a fire, an electric shock or an injury is caused.
Be sure to put on gloves (∗∗∗∗∗ ) during repair work.
If not putting on gloves, an injury may be caused with the parts, etc.
(∗ ) Heavy gloves such as work gloves
When the power was turned on, start to work after the equipment has been
sufficiently cooled.
As temperature of the compressor pipes and others became high due to cooling/heating
operation, a burn may be caused.
Insulator check
Ventilation
Be attentive to
electric shock
Compulsion
Check after rerair
Check after reinstallation
Put on gloves
Cooling check
 WARNING
 CAUTION
7
• New Refrigerant (R410A)
This air conditioner adopts a new HFC type refrigerant (R410A) which does not deplete the ozone layer.
1. Safety Caution Concerned to New Refrigerant
The pressure of R410A is high 1.6 times of that of the former refrigerant (R22). Accompanied with change of
refrigerant, the refrigerating oil has been also changed. Therefore, be sure that water, dust, the former refriger-
ant or the former refrigerating oil is not mixed into the refrigerating cycle of the air conditioner with new refriger-
ant during installation work or service work. If an incorrect work or incorrect service is performed, there is a
possibility to cause a serious accident. Use the tools and materials exclusive to R410A to purpose a safe work.
2. Cautions on Installation/Service
(1) Do not mix the other refrigerant or refrigerating oil.
For the tools exclusive to R410A, shapes of all the joints including the service port differ from those of the
former refrigerant in order to prevent mixture of them.
(2) As the use pressure of the new refrigerant is high, use material thickness of the pipe and tools which are
specified for R410A.
(3) In the installation time, use clean pipe materials and work with great attention so that water and others do
not mix in because pipes are affected by impurities such as water, oxide scales, oil, etc. Use the clean
pipes.
Be sure to brazing with flowing nitrogen gas. (Never use gas other than nitrogen gas.)
(4) For the earth protection, use a vacuum pump for air purge.
(5) R410A refrigerant is azeotropic mixture type refrigerant. Therefore use liquid type to charge the refrigerant.
(If using gas for charging, composition of the refrigerant changes and then characteristics of the air condi-
tioner change.)
3. Pipe Materials
For the refrigerant pipes, copper pipe and joints are mainly used. It is necessary to select the most appropriate
pipes to conform to the standard. Use clean material in which impurities adhere inside of pipe or joint to a
minimum.
(1) Copper pipe
<Piping>
The pipe thickness, flare finishing size, flare nut and others differ according to a refrigerant type.
When using a long copper pipe for R410A, it is recommended to select “Copper or copper-base pipe without
seam” and one with bonded oil amount 40mg/10m or less. Also do not use crushed, deformed, discolored
(especially inside) pipes. (Impurities cause clogging of expansion valves and capillary tubes.)
<Flare nut>
Use the flare nuts which are attached to the air conditioner unit.
(2) Joint
The flare joint and socket joint are used for joints of the copper pipe. The joints are rarely used for installa-
tion of the air conditioner. However clear impurities when using them.
8
4. Tools
(1) Required Tools for R410A
Mixing of different types of oil may cause a trouble such as generation of sludge, clogging of capillary, etc.
Accordingly, the tools to be used are classified into the following three types.
1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22))
2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22)
3) Tools commonly used for R410A and for conventional refrigerant (R22)
The table below shows the tools exclusive for R410A and their interchangeability.
Tools exclusive for R410A (The following tools for R410A are required.)
Tools whose specifications are changed for R410A and their interchangeability
No.
�
�
�
�
�
�
�
�
	
	
Used tool
Flare tool
Copper pipe gauge for
adjusting projection
margin
Torque wrench
Gauge manifold
Charge hose
Vacuum pump adapter
Electronic balance for
refrigerant charging
Refrigerant cylinder
Leakage detector
Charging cylinder
Usage
Pipe flaring
Flaring by conventional
flare tool
Connection of flare nut
Evacuating, refrigerant
charge, run check, etc.
Vacuum evacuating
Refrigerant charge
Refrigerant charge
Gas leakage check
Refrigerant charge
Conventional air
conditioner installation
Whether new equipment
can be used with
conventional refrigerant
Yes
*(Note 1)
No
No
Yes
Yes
No
Yes
No
Whether conven-
tional equipment can
be used
 *(Note 1)
*(Note 1)
No
No
No
Yes
No
No
No
(1) Vacuum pump
Use vacuum pump by
attaching vacuum pump adapter.
(2) Torque wrench
(3) Pipe cutter
(4) Reamer
(5) Pipe bender
(6) Level vial
(7) Screwdriver (+, –)
(8) Spanner or Monkey wrench
(9) Hole core drill
(10) Hexagon wrench (Opposite side 4mm)
(11) Tape measure
(12) Metal saw
Also prepare the following equipments for other installation method and run check.
(1) Clamp meter
(2) Thermometer
(3) IInsulation resistance tester
(4) Electroscope
Existence of
new equipment
for R410A
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(Note 2)
R410A
air conditioner installation
(Note 1) When flaring is carried out for R410A using the conventional flare tools, adjustment of projection
margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary.
(Note 2) Charging cylinder for R410A is being currently developed.
General tools (Conventional tools can be used.)
In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary
as the general tools.
9
5. Recharge of Refrigerant
When recharge of the refrigerant is required, charge the new refrigerant with the specified amount in the
procedure as described below.
� Never charge the refrigerant over the specified amount.
� Do not charge the additional refrigerant.
If charging refrigerant additionally when refrigerant gas
leaks, the refrigerant composition in the refrigerating
cycle changes resulted in change of air conditioner
characteristics or refrigerant over the specified stan-
dard amount is charged and an abnormal high
pressure is applied to the inside of the refrigerating
cycle resulted in cause of breakage or injury.
� Set the equipment so that liquid refrigerant can be charged.
� When using a cylinder with siphon pipe, liquid can be charged without inversing the cylinder.
Gauge manifold
[ Cylinder with siphon ] [ Cylinder without siphon ]
OUTDOOR unit
Gauge manifold
OUTDOOR unit
Electronic 
balance
Refrigerant
cylinder
Electronic 
balance
Siphon
Refrigerant
cylinder
6. Environment
Use “Vacuum pump method” for an air purge (Discharge of air in the connecting pipe) in installation time.
• Do not discharge flon gas into the air to protect the earth environment.
• Using the vacuum pump method, clear the remained air (Nitrogen, etc.) in the unit. If the air remains, the
pressure in the refrigerating cycle becomes abnormally high and an injury and others are caused dueto burst.
VL VH
Connected to 
indoor unit
Main 
pipe
Valve fully closed
(gas side)
Center unit
Low-
pressure gauge
High-
pressure gauge
Gauge 
manifold
Brazed
Service 
port
Service port
Ø6.4
Copper pipe
Ø6.4
Copper pipe
Fully 
tightened
Fully 
tightened
Reducing 
valve
Nitrogen 
gas
Valve fully closed
(liquid side)
Valve fully closed
(balance)
Connected to other 
terminal units
(Charge the refrigerant as below.)
Recover the refrigerant and check there is no refrigerant in the 
equipment. Leave it as it is for 1 to 2 minutes and check the indicator of 
the compound gauge does not return.
Set the refrigerant cylinder on the electron balance, connect 
the charge hose to connecting ports of the cylinder and the 
electron gauge, and then charge the liquid refrigerant from the 
service port at liquid side. (Shield with the gauge manifold so 
that refrigerant does not flow to gas side.)
Connect the charge hose to the packed valve service ports at gas 
side, liquid side, and balance side of the outdoor unit.
Open the packed valves of the balance pipe fully at liquid and gas 
sides, and then return the valve at gas side a little to the closed side.
Open fully PMV of the outdoor unit.
• Turn on power of the outdoor unit.
• Short CN30 on I/F P.C. board of the outdoor unit.
• Turn off power of the outdoor unit within 2 minutes after short-circuiting. 
Open fully the handle Low of the gauge manifold, and then turn on 
the power of vacuum pump for vacuuming.
When the pressure has lowered until indication of the compound 
gauge pointed -0.1MPa (-76cmHg), open fully the handle Low and 
turn off the power of vacuum pump.
Connect the charge hose to vacuum pump adaptor.
R410A refrigerant is consisted with HFC mixed refrigerant.
Therefore if the refrigerant gas is charged, the composition
of the charged refrigerant changes and characteristics of
the equipment changes.
4mm-hexagonal wrench is required.
10
1. OUTLINE
1-1. Components Lineup in Super Modular Multi Using
High-efficiency Refrigerant R410A
� Outdoor units
Inverter unit
Corresponding HP
5 HP 6 HP 8 HP 10 HP 12 HP
Appearance
Heat pump MMY- MAP0501HT8 MAP0601HT8 MAP0801HT8 MAP1001H8 MAP1201HT8
Heat pump MMY- MAP0501HT7 MAP0601HT7 MAP0801HT7 MAP1001HT7 MAP1201HT7Modelname
Cooling only MMY- MAP0501T8 MAP0601T8 MAP0801T8 MAP1001T8 MAP1201T8
Cooling capacity (kW) 14.0 16.0 22.4 28.0 33.5
Heating capacity (kW) 16.0 18.0 25.0 31.5 37.5
No. of connectable indoor units 8 10 13 16 20
Corresponding HP 14 HP 16 HP 18 HP 20 HP 22 HP 22 HP 24 HP 24 HP
MMY- AP1401HT8 AP1601HT8 AP1801HT8 AP2001HT8 AP2201HT8 AP2211HT8 AP2401HT8 AP2411HT8
MMY- AP1401HT7 AP1601HT7 AP1801HT7 AP2001HT7 AP2201HT7 AP2211HT7 AP2401HT7 AP2411HT7Combined Model
MMY- AP1401T8 AP1601T8 AP1801T8 AP2001T8 AP2201T8 AP2211T8 AP2401T8 AP2411T8
Cooling capacity (kW) 38.4 45.0 50.4 56.0 61.5 61.5 68.0 68.0
Heating capacity (kW) 43.0 50.0 56.5 63.0 69.0 69.0 76.5 76.5
8 HP 8 HP 10 HP 10 HP 8 HP 12 HP 8 HP 12 HP
6 HP 8 HP 8 HP 10 HP 8 HP 10 HP 8 HP 12 HP
— — — — 6 HP — 8 HP —
Combined outdoor units
— — — — — — — —
No. of connectable indoor units 23 27 30 33 37 37 40 40
Corresponding HP 26 HP 28 HP 30 HP 32 HP 32 HP 34 HP 34 HP 36 HP
MMY- AP2601HT8 AP2801HT8 AP3001HT8 AP3201HT8 AP3211HT8 AP3401HT8 AP3411HT8 AP3601HT8
MMY- AP2601HT7 AP2801HT7 AP3001HT7 AP3201HT7 AP3211HT7 AP3401HT7 AP3411HT7 AP3601HT7Combined Model
MMY- AP2601T8 AP2801T8 AP3001T8 AP3201T8 AP3211T8 AP3401T8 AP3411T8 AP3601T8
Cooling capacity (kW) 73.0 78.5 84.0 90.0 90.0 96.0 96.0 101.0
Heating capacity (kW) 81.5 88.0 95.0 100.0 100.0 108.0 108.0 113.0
10 HP 10 HP 10 HP 8 HP 12 HP 10 HP 12 HP 10 HP
 8 HP 10 HP 10 HP 8 HP 10 HP 8 HP 12 HP 10 HP
 8 HP 8 HP 10 HP 8 HP 10 HP 8 HP 10 HP 8 HP
Combined outdoor units
— — — 8 HP — 8 HP — 8 HP
No. of connectable indoor units 43 47 48 48 48 48 48 48
Corresponding HP 36 HP 38 HP 40 HP 42 HP 44 HP 46 HP 48 HP
MMY- AP3611HT8 AP3801HT8 AP4001HT8 AP4201HT8 AP4401HT8 AP4601HT8 AP4801HT8
MMY- AP3611HT7 AP3801HT7 AP4001HT7 AP4201HT7 AP4401HT7 AP4601HT7 AP4801HT7Combined Model
MMY- AP3611T8 AP3801T8 AP4001T8 AP4201T8 AP4401T8 AP4601T8 AP4801T8
Cooling capacity (kW) 101.0 106.5 112.0 118.0 123.5 130.0 135.0
Heating capacity (kW) 113.0 119.5 126.5 132.0 138.0 145.0 150.0
12 HP 10 HP 10 HP 12 HP 12 HP 12 HP 12 HP
12 HP 10 HP 10 HP 10 HP 12 HP 12 HP 12 HP
12 HP 10 HP 10 HP 10 HP 10 HP 12 HP 12 HP
Combined outdoor units
— 8 HP 10 HP 10 HP 10 HP 10 HP 12 HP
No. of connectable indoor units 48 48 48 48 48 48 48
� Combination of outdoor units
� Branching joints and headers
* In 1 line after header branch, the maximum total capacity codes 6.0 can be connected.
* The capacity code is indicated as HP equivalent. For details, refer to “Selection of refrigerant pipe”
Y-branch joint
Branch header
T-branch joint
Model RBM-
BY53-E
BY103-E
BY203-E
BY303-E
HY1043-E
HY2043-E
HY1083-E
HY2083-E
BT13-E
Usage
Total indoor unit capacity code Below 6.4
Total indoor unit capacity code Over 6.4, below 14.2
Total indoor unit capacity code Over 14.2, below 25.2
Total indoor unit capacity code Over 25.2
Max. Total indoor unit capacity code Below 14.2
4 branches Total indoor unit capacity code Over 14.2, below 25.2
Max. Total indoor unit capacity code Below 14.2
8 branches Total indoor unit capacity code Over 14.2, below 25.2
The following 3 types of T joint pipes are collected as 1 set.
• Balance pipe (Ø9.5) ×1
• Pipe at liquid side (Corresponded dia. Ø9.5 to Ø22.2) ×1
• Pipe at gas side (Corresponded dia. Ø15.9 to Ø38.1) × 1
External view
11
� Indoor units
Type Appearance Model name Capacity rank Capacity code Coolingcapacity (kW)
Heating
capacity (kW)
MMU-AP0091H 009 type 1 2.8 3.2
MMU-AP0121H 012 type 1.25 3.6 4.0
MMU-AP0151H, 015 type 1.7 4.5 5.0
MMU-AP0181H 018 type 2 5.6 6.3
MMU-AP0241H 024 type 2.5 7.1 8.0
MMU-AP0271H 027 type 3 8.0 9.0
MMU-AP0301H 030 type 3.2 9.0 10.0
MMU-AP0361H 036 type 4 11.2 12.5
MMU-AP0481H 048 type 5 14.0 16.0
4-way Air Discharge
Cassette Type
MMU-AP0561H 056 type 6 16.0 18.0
MMU-AP0071WH 007 type 0.8 2.2 2.5
MMU-AP0091WH 009 type 1 2.8 3.2
MMU-AP0121WH 012 type 1.25 3.6 4.0
MMU-AP0151WH 015 type 1.7 4.5 5.0
MMU-AP0181WH 018 type 2 5.6 6.3
MMU-AP0241WH 024 type 2.5 7.1 8.0
MMU-AP0271WH 027 type 3 8.0 9.0
MMU-AP0301WH 030 type 3.2 9.0 10.0
2-way Air Discharge
Cassette Type
MMU-AP0481WH
(CHINA only) 048 type 5 14.0 16.0
MMU-AP0071YH 007 type 0.8 2.2 2.5
MMU-AP0091YH 009 type 1 2.8 3.2
MMU-AP0121YH 012 type 1.25 3.6 4.0
MMU-AP0151SH 015 type 1.7 4.5 5.0
MMU-AP0181SH 018 type 2 5.6 6.3
1-way Air Discharge
Cassette Type
MMU-AP0241SH 024 type 2.5 7.1 8.0
MMD-AP0071BH 007 type 0.8 2.2 2.5
MMD-AP0091BH 009 type 1 2.8 3.2
MMD-AP0121BH 012 type 1.25 3.6 4.0
MMD-AP0151BH 015 type 1.7 4.5 5.0
MMD-AP0181BH 018 type 2 5.6 6.3
MMD-AP0241BH 024 type 2.5 7.1 8.0
MMD-AP0271BH 027 type 3 8.0 9.0
MMD-AP0301BH 030 type 3.2 9.0 10.0
MMD-AP0361BH 036 type 4 11.2 12.5
MMD-AP0481BH 048 type 5 14.0 16.0
Concealed Duct
Standard Type
MMD-AP0561BH 056 type 6 16.0 18.0
MMD-AP0181H, 018 type 2 5.6 6.3
MMD-AP0241H 024 type 2.5 7.1 8.0
MMD-AP0271H 027 type 3 8.0 9.0
MMD-AP0361H 036 type 4 11.2 12.5
MMD-AP0481H 048 type 5 14.0 16.0
MMD-AP0721H 072 type 8 22.4 25.0
Concealed Duct
High Static
Pressure Type
MMD-AP0961H 096 type 10 28.0 31.5
MMC-AP0151H 015 type 1.7 4.5 5.0
MMC-AP0181H 018 type 2 5.6 6.3
MMC-AP0241H 024 type 2.5 7.1 8.0
MMC-AP0271H 027 type 3 8.0 9.0
MMC-AP0361H 036 type 4 11.2 12.5
Under Ceiling Type
MMC-AP0481H 048 type 5 14.0 16.0
MMK-AP0071H 007 type 0.8 2.2 2.5
MMK-AP0091H 009 type 1 2.8 3.2
MMK-AP0121H 012 type 1.25 3.6 4.0
MMK-AP0151H 015 type 1.7 4.5 5.0
MMK-AP0181H 018 type 2 5.6 6.3
High Wall Type
MMK-AP0241H 024 type 2.5 7.1 8.0
MML-AP0071H 007 type 0.8 2.2 2.5
MML-AP0091H 009 type 1 2.8 3.2
MML-AP0121H 012 type 1.25 3.6 4.0
MML-AP0151H 015 type 1.7 4.5 5.0
MML-AP0181H 018 type 2 5.6 6.3
Floor Standing
Cabinet Type
MML-AP0241H 024 type 2.5 7.1 8.0
MML-AP0071BH 007 type 0.8 2.2 2.5
MML-AP0091BH 009 type 1 2.8 3.2MML-AP0121BH 012 type 1.25 3.6 4.0
MML-AP0151BH 015 type 1.7 4.5 5.0
MML-AP0181BH 018 type 2 5.6 6.3
Floor Standing
Concealed Type
MML-AP0241BH 024 type 2.5 7.1 8.0
MMF-AP0151H 015 type 1.7 4.5 5.0
MMF-AP0181H 018 type 2 5.6 6.3
MMF-AP0241H 024 type 2.5 7.1 8.0
MMF-AP0271H 027 type 3 8.0 9.0
MMF-AP0361H 036 type 4 11.2 12.5
MMF-AP0481H 048 type 5 14.0 16.0
Floor Standing Type
MMF-AP0561H 056 type 6 16.0 18.0
12
� Remote controller switch
Name
Appearance
Model name
Type
Wired remote controller
RBC-AMT21E
Simple wired remote controller
RBC-AS21E
Weekly timer
RBC-EXW21E
Wireless remote controller kitName
Appearance
Model name
Type
RBC-AX22U (W)-E
Air Discharge Cassette type
4-way discharge type
RBC-AX22CE
Under Ceiling type
TCB-AX21E
Separate sensor type
Receiver section
UNIT
SET CL
SETTING
UNIT No.
CODE No.
TEST
SET DATA
R.C. No.
˚C
F̊
TEST
SETTING
WEEKLY TIMER
ERROR
SuMoTuWeTh Fr Sa
PROGRAM1
PROGRAM2
PROGRAM3
ADR ADR ADRReceiver section
Receiver section
laid separately
Name
Appearance
Model name
Type
Central remote controller
TCB-SC642TLE
64 system center controller
SELECT ZONE
CL SET
GROUP
CODE
 No.
UNIT No.
No.R.C.
TEST
ZONEALL
ZONE
GROUP
SETTING
1234
SET DATA
13
2.
W
IR
IN
G
 D
IA
G
R
A
M
2-1.
In
d
o
o
r U
n
it
2-1-1.
4-w
ay A
ir D
isch
arg
e C
assette Typ
e
M
o
d
el:
M
M
U
-A
P
0091H
, A
P
0121H
, A
P
0151H
, A
P
0181H
, A
P
0241H
,
M
M
U
-A
P
0271H
, A
P
0301H
, A
P
0361H
, A
P
0481H
, A
P
0561H
CN104
(YEL)
CN102
(RED)
CN101
(BLK)
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5 6
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5 6
6 4 3 1 2 5
6 4 3 1 2 5
3 1
3 2 1
CN34
(RED)
FS
CN33
(WHI)
CN82
(BLU)
5 4 3 2 1
5 4 3 2 1
CN334
(BLU)
DC20V
CN333
(WHI)CN68
(BLU)
CN304
(GRY)
CN66
(WHI)
CN44
(BLN)
CN67
(BLK)
LM1
PMV
Indoor control P.C. board
MCC-1402
1
2
1
2
TA
1
2
1
2
TCJ
1
2
1
2
TC2
CN100
(BRN)
1
2
1
2
33
CN80
(GRN)
PNL
EXCT
1
2
CN73
(RED)
1
2
Filter input
(Option)(Fandrive)
CN70
(WHI)
CN20
(BLU)
1
2
3
TC1
1 2 3 4 5
1 2 3 4 5
LM2
1 2 3 4 5
CN81
(BLK)
CN60
(WHI)
CN32
(WHI)
CN61
(YEL)
CN50
(WHI)
CN40
(BLU)
T10 1 2 3 4 56 51 2 4 3 2 16 5 4 3 21 2 3
CN309
(YEL)
1 2 3
1 2 3
1 2
1 2
CN41
(BLU)
1 2 3
1 2 3
4 5 1
RY302
RY303
1
2
3
1
2
3
1
2
3
1
2
3
1
2
1
2
1
2
3
~ +
~ –
Fuse
T6.3A
250V~
Fuse
T3.15A
250V~
DC15V
DC12V
DC7V
P301
BLK
RED
WHI
WHI
RED
S(N)R(L)
Power supply
Single phase 
220-240V 50Hz
 220V 60Hz
Indoor unit
Earth screw
DM
FM
Power
supply
circuit
Motor drive 
circuit
Parts name
Fan motor
Indoor temp sensor
Temp sensor
Temp sensor
Temp sensor
Lover motor
Drain pump motor
Float switch
Drain control relay
Pulse Motor Valve
Color identification
1. indicates the terminal block, letter at inside 
indicates the terminal number.
2. A dotted line and broken line indicate the wiring at site.
3. indicates the control P.C. board.
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BRN : BROWN
BLK : BLACK
GRY : GRAY
PNK : PINK
ORN : ORANGE
GRN : GREEN
Closed end 
connector
CN01
(WHI)
CN02
(BLU)
Adaptor for wireless 
remote controller
CN03
(RED)
Network adaptor 
(Option)
1 2
1 2
1 2
1 2
1 2
1 2
X Y
3 3
2 2
1 1
Wired remote 
controller
1 2
BAU2
1 2
CN1
(WHI)
CN001
(WHI)
WHI
Outdoor unit
BLK WHI BLK
BLK
B
LU
B
LU
B
LK
B
LK
TR
WHI
U1
U2U1
Network 
adaptor 
P.C. board
MCC-1401
Symbol
FM
TA
TC1
TCJ
TC2
LM1, LM2
DM
FS
RY302
PMV
Flow selector 
unit earth 
screw
14
2-1-2.
2-w
ay A
ir D
isch
arg
e C
assette Typ
e
M
o
d
el:
M
M
U
-A
P
0071W
H
, A
P
0091W
H
, A
P
0121W
H
, A
P
0151W
H
, A
P
0181W
H
,
M
M
U
-A
P
0241W
H
, A
P
0271W
H
, A
P
0301W
H
, A
P
0481W
H
CN104
(YEL)
CN102
(RED)
CN101
(BLK)
5 4 3 2 1
5 4 3 2 1
9 8 7 6
9 8 7 6
FAN
CN083(WHI)
WHI
RED
DP
(BLU)
CN068
DM
CN304
(GRY)
CN066
(WHI)
CN067
(BLK)
CN044
(BRW)
Indoor control P.C. board
1
2
1
2
TA
1
2
1
2
TCJ
1
2
1
2
TC2
CN100
(BRW)
1
2
1
2
33
CN080
(GRN) PNL
EXCT
1
2
CN073
(RED)
1
2
FilterCN070(WHI)
CN081
(BLK)
CN060
(WHI)
Option
CN032
(WHI)
CN075
(WHI)
CN074
(WHI)
TR
1
2
1
2
3
4
5
1
2
3
TC1
1 2 3 4 5 6
CN061
(YEL)
Fan drive
1 2 3 4 5 61 2 3 4 5 6
1 2 3
1 2 3
1 2 3
1 2
1 2
1 2 3
1 2 3
1 2 3
1 2 3
4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
CN050
(WHI)
CN041
(BLU)
CN040
(BLU)
CN01
(WHI)
CN02
(BLU)
Network 
adaptor 
(Option)
1 21 2 3 4 5
1 2
1 2
3 3
2
1 1
CN03
(RED)MCC-1401
2 2
1 1
RY004
1
2
3
1
2
1
2
RY002
RY006
RY007
RY005
1 2
BA YX
S(N)R(L)
U2
1 2
Remote controller 
CN1
(WHI)
Power supply
Single phase 
220-240V 50Hz
 220V 60Hz
Indoor unit
Earth screw
Outdoor unit
B
LU
B
LU B
LK
B
LK
U1
U2U1
Flow selector 
unit earth 
screw
Power supply
circuit
CN01
(WHI)
CN02
(YEL)
Sub P.C. board
MCC-1520
Symbol
FM
RC
TR
LM
TA
TC1,TC2,TCJ
RY001
RY002
RY004
RY005~007
FS
DM
PMV
Parts name
Fan motor
Running capacitor
Transformer
Louver motor
Indoor temp sensor
Temp sensor
Louver control relay
Drain control relay
Heater control relay
Fan motor control relay
Float switch
Drain pump motor
Pulse Motor Valve
LM
(GRN)
CN033
LM
1 2 3
1 2 3
FS
(RED)
CN030
PMV
(BLU)
CN082
FS
1 2 3
1 2 3
1 2 3
1 2 3
4 5 6
4 5 6
6 4 3
6 4 3
1 2 5
1 2 5
RY001
TR
Fuse
T5.0A
250V~
1
2
3
1
2
3
CN039
(YEL)
1
2
3
1
2
3
1 2
1 2
PMV
1
2
1
2
3
4
3
4
5
6
5
6
77
9
FM
Y
E
L
B
LU
O
R
NBLK
H M L UL
RC
RED
1. indicates the terminal block, letter at inside 
indicates the terminal number.
2. A dotted line and broken line indicate the wiring at site.
3. indicates the control P.C. board.
Closed end 
connector
Color 
indication
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GRY : GRAY
PNK : PINK
ORN : ORANGE
BRW : BROWN
GRN : GREEN
Line Filter
P301
(BLK)
15
2-1-3.
1-w
ay A
ir D
isch
arg
e C
assette Typ
e (C
o
m
p
act typ
e)
M
o
d
el: M
M
U
-A
P
0071Y
H
, A
P
0091Y
H
, A
P
0121Y
H
CN104
(YEL)
CN102
(RED)
CN101
(BLK)
5 4 3 2 1
5 4 3 2 1
9 8 7 6
9 8 7 6
FAN
CN083(WHI)
DP
(BLU)
CN068
DM
CN304
(GRY)
Heater
CN301
(BLK)
CN066
(WHI)
WHI
RED
BLU
BLU
BLU
CN067
(BLK)
Indoor control P.C. board
1
2
1
2
TA
TCJ
1
2
1
2
1
2
CN100
(BRW)
1
2
1
2
33
CN080
(GRN) PNL
EXCT
1
2
CN073
(RED)
1
2
FilterCN070(WHI)
CN081
(BLK)
CN060
(WHI)
Option
CN032
(WHI)
CN075
(WHI)
CN074
(WHI)
TR
1
2
1
2
3
4
5
1
2
3
TC1
1 2 3 4 5 6
CN061
(YEL)
Fan drive
1 2 3 4 5 61 2 3 4 5 6
1 2 3
1 2 3
1 3
1 2
1 2
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
4 5 6
CN050
(WHI)
CN041
(BLU)
CN040
(BLU)
1 2
1 2
CN044
(BRW)
CN01
(WHI)
CN02
(BLU)
Network 
adaptor 
(Option)
1 21 2 3 4 5
1 2
1 2
1 1
2 2
2 1
2
3
3 1
CN03
(RED)
MCC-1401
RY004
1
2
3
1
2
RY002
RY006
RY007
RY005
1 2
BA YXS(N)R(L) U2
1 2
Remote controller 
CN1
(WHI)
Power supply
Single phase 
220-240V 50Hz
 220V 60Hz
Indoor unit
Earth screw
Outdoor
unit
B
LU
B
LU
R
E
D
W
H
I
B
LK
B
LK
U1
U2U1
Power supply
circuit
Network 
adaptor 
P.C. board
Symbol
FM
RC
TR
LM
TA
TC1,TCJ
RY001
RY002
RY004
RY005~007
FS
DM
PMV
Parts name
Fan motor
Running capacitor
Power transformer
Louver motor
Indoor temp sensor
Temp sensor
Flap motor control relay
Drain pump control relay
Heater control relay
Fan motor control relay
Float switch
Drain pump motor
Pulse Motor Valve
LM
(GRN)
CN033
LM
1 2 3
1 2 3
FS
(RED)
CN030
PMV
(BLU)
CN082
FS
1 2 3
1 2 3
1 2 3
1 2 3
4 5 6
4 5 6
6 4 3
6 4 3
1 2 5
1 2 5
RY001
AI-NET 
central control 
terminal
TR
Fuse
T5.0A
1
2
3
1
2
3
CN309
(YEL)
AC IN
1
2
3
1
2
3
2 1
2 1
2 1
2 1
PMV1
2
1
2
3
4
3
4
5
6
5
6
FM
Y
E
L
B
LU
O
R
N
B
LK
R
E
D
H M L UL
RC
1. indicates the terminal block, letter at inside 
indicates the terminal number.
2. A dotted line and broken line indicate the wiring at site.
3. indicates the control P.C. board.
Closed end 
connector1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
CN01
(WHI)
CN02
(YEL)
Sub P.C. board
MCC-1520
Color 
indication
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GRY : GRAY
PNK : PINK
ORN : ORANGE
BRW : BROWN
GRN : GREEN
Line Filter
Flow selector 
unit earth 
screw
16
M
o
d
el: M
M
U
-A
P
0151S
H
, A
P
0181S
H
, A
P
0241S
H
FM
RC
TR
LM
TA
TC1,TC2,TCJ
RY001
RY002
RY005~007
FS
DM
PMV
Fan motor
Running capacitor
Transformer
Lover motor
Indoor temp sensor
Temp sensor
Louver control relay
Drain control relay
Fan motor control relay
Float switch
Drain pump motor
Pulse motor valve
Symbol Parts name
Color 
indication
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GRY : GRAY
PNK : PINK
ORN : ORANGE
BRW : BROWN
GRN : GREEN
1. Indicates the terminal bolock, letter.
 Letter at inside indicates the terminal number.
2. A dotted line and broken line indicate 
 the wiring at side.
3. indicate the control p.c. board.
5 3 17
7
9
9 5 3 1
RY007
P301
RY004
(GRY)
CN304
(YEL)
CN309
(BLK)
BLK
CN067
FUSE
T5.0A 250V~
RY006
RY005
H
RED BLK ORN BLU YEL
M L UL
3
1
3
1
3
1
3
1
3
1
RC
FM
1
2
3
1
3
CN104
(YEL)
TA
2
1
2
1
CN102
(RED)
TCJ
2
1
2
1
CN101
(BLK)
CN100
(BRW)
1
3
CN080
(GRN)
TC2
PNL
EXCT
2
1
CN073
(RED) 2
2
1
FILTER
CN070
(WHI)
CN081
(BLK)
2
1
2
1
2
1
1
1
2
2
1
1
2
2
1
1
2
2
1
1
2
X Y
2
3
2
1 1
3
1
1 2
3
3 1 2 3 4 5 1 2 3 4 5 6 1 2 1 23 4 5 6 1 2 3 4 5 6
1 2 3 4 5 6
2
1
4
3
5
2
1
TC1
CN066
(WHI)
AC IN
CN044
(BRW)
CN040
(BLU)
Outdoor unit Remote Controller
Power supply
single phase
220-240V 50Hz
220V 60Hz
Indoor unit
earth screw Closed-endconnector
Line Filter
CN01(WHI)
CN03(RED)
CN02
(BLU)
CN041
(BLU)
CN050
(WHI)
CN061
(YEL)
CN032
(WHI)
FAN
DRIVE
OPTION
CN060
(WHI)
EMG
B
LU
B
LU
B
LK
B
LK
RC
TR
U1
U1 U2
U2 A B
Network Adapter
(Option)
Control P.C. board
for Indoor unit
MCC-1403
MCC-1401
1
1
2
2
CN1
1
1
3
3CN074
(WHI)
CN075
(WHI)
Power supply
circuit
TR
1
1
3
3CN068
(BLU)
FAN
CN083
(WHI)
RY002
DM
DM
1
1
3
3 CN033
(GRN)
RY001
LM
CN082
(BLU)
PMV
LM
1
1
3
3 CN030
(RED)
FS
FS
1
1
2
2
1 2 3 4 5 6
1 2 3 4 5 6
1 234 56
1 234 56
PMV
3
1
3
2
1
6
5
4
6
5
4
R(L) S(N)
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
CN01
(WHI)
CN02
(YEL)
Sub P.C. board
MCC-1520
Flow selector 
unit earth 
screw
17
2-1-4.
C
o
n
cealed
 D
u
ct S
tan
d
ard
 Typ
e
M
o
d
el:
M
M
D
-A
P
0071B
H
, A
P
0091B
H
, A
P
0121B
H
, A
P
0151B
H
, A
P
0181B
H
, A
P
0241B
H
M
M
D
-A
P
0271B
H
, A
P
0301B
H
, A
P
0361B
H
, A
P
0481B
H
, A
P
0561B
H
CN104
(YEL)
CN102
(RED)
CN101
(BLK)
1 2 3 4 5
1 2 3 4 5 6
1 2 3 4 5 6
6 4 3 1 2 5
6 4 3 1 2 5
3 1
3 2 1
CN34
(RED)
FS
CN33
(WHI)
CN82
(BLU)
DC20V
CN68
(BLU)
CN304
(GRY)
CN66
(WHI)
CN44
(BRW)
CN67
(BLK)
Reactor
PMV
Indoor control P.C. board
1
2
1
2
TA
1
2
1
2
TCJ
1
2
1
2
TC2
CN100
(BRN)
1
2
1
2
33
CN80
(GRN)
PNL
EXCT
1
2
CN73
(RED)
1
2
(Signal output)(Fan drive)
CN70
(WHI)
CN20
(BLU)
1
2
3
TC1
1 2 3 4 5
CN81
(BLK)
CN60
(WHI)
CN32
(WHI)
CN61
(YEL)
CN50
(WHI)
Adaputor for wired
remote controller
CN309
(YEL)
CN41
(BLU)
CN40
(BLU)
T10 1 2 3 4 51 21 2 3 4 5 61 2 3 4 51 2 31 2 3
1 2 3
1 2 3
1 2
1 2
1 2 3
1 3
1 2 2
4 5 6
1 2
1 2
RY302
1
2
3
1
2
3
1
2
3
1
2
3
1
2
1
2
1
2
3
~ +
~ –
Fuse
T6.3A
250V~
Fuse
T3.15A
250V~ DC15V
DC12V
DC7V
P301
BLK
RED
WHI
WHIWHI
RED
Wired remote 
controller
1 2
BA
S(N)R(L)
U2
1 2
CN1
(WHI)
CN001
(WHI)
Indoor unit power supply
Single phase 
220-240V 50Hz
 220V 60Hz
Indoor unit
Earth screw
WHI
Outdoor unit
BLK WHI BLK
BLK
B
LU
B
LU
B
LK
B
LK
TR
WHI
U1
U2U1
DM
Power
supply
circuit
Motor drive 
circuit
CN01
(WHI)
CN02
(BLU) CN03
(RED)
Network 
adaptor 
(Option)
1 2
1 2
1 2
1 2
X Y
3 3
2 2
1 1
Network 
adaptor 
P.C. board
Symbol
FM
TA
TC1,TC2,TCJ
DM
FS
RY302
PMV
Parts name
Fan motor
Indoor temp sensor
Indoor temp sensor
Drain pump motor
Float switch
Drain pump control relay
Pulse Motor Valve
Color identification
1. indicates the terminal block, letter at inside 
indicates the terminal number.
2. A dotted line and broken line indicate the wiring at site.
3. indicates the control P.C. board.
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BRW : BROWN
BLK : BLACK
GRY : GRAY
PNK : PINK
ORN : ORANGE
GRN : GREEN
Closed end 
connector
CN333
(WHI)
CN334
(WHI)
1
1
2
2
34
4
5
5
1 3 5
1 3
1 2 3
1 2 3
5
11
5
4
5
4
FM
Flow selector 
unit earth 
screw
18
2-1-5.
C
o
n
cealed
 D
u
ct H
ig
h
 S
tatic P
ressu
re Typ
e
M
o
d
el: M
M
D
-A
P
0181H
, A
P
0241H
, A
P
0271H
, A
P
0361H
, A
P
0481H
TC1
TC2
CN080
(GRN)
CN101
(BLK)
CN073
(RED)
CN070
(WHI)
4 2
5 4 3 2 1
9 8 7 6
9 8 7 6
FAN
CN083(WHI)
DP
(BLU)
CN068
DP
CN304
(GRY)
CN066
(WHI)
CN067
(BLK)
(BLK)
PNL
EXCT
1
2
1
2
Filter
CN082
(BLU)
CN060
(WHI)
Option
CN032
(WHI)
CN075
(WHI)
CN074
(WHI)
TR
T10
1
2
6
5
4
3
2
1
6
5
4
3
2
1
5
2
1
3
4
6
5
2
1
3
4
6
CN081
(BLK)
1
2
3
4
5
3
1 2 3 4 5 6
CN061
(YEL)
Fan drive
1 2 3 4 5 61 2 3 4 5 6
1 2 3
1 2 3
1 3
1 21 2
1 2
1 2 3
1 2 3
1 2 3
1 2 3
4 5 6
CN050
(WHI)
CN041
(BLU)
CN040
(BLU)
CN044
(BRW)
1 21 2 3 4 5
RY004
P301
1
2
3
1
2
RY002
RY006
RY007
RY005
1 2
BA
S(N)R(L)
U2
1 2
Remote controller 
CN1
(WHI)
Power supply
Single phase 
220-240V 50Hz
 220V 60Hz
Indoor unit
Earth screw
Outdoor unit
U1
U2U1
Power
supply
circuit
Symbol
FM
RC
TR
TA
TC1,TC2,TCJ
RY005~007
RY001
RY002
PMV
F
43F1
DM
FS
Parts name
Fan motor
Running capacitor
Transformer
Indoor temp sensor
Temp sensor
Fan motor control relay
Flap motor control relay
Drain control relay
Pulse Motor Valve
Fuse
Fan motor control relay
Drain pump motor
Float switch
Sold
separately
LM
(GRN)
CN033
1 2 3
1 2 3
CN100
(BRN)
1 2 3
1 2 3
1 2 3
1 2 3
1 2
1 2
TCJ
CN102
(RED)
1 2
1 2
TA
CN104
(YEL)
FS
CN030
(RED)
1 2
1 2
RY001
TR
OC
EMG
RC
Fuse
T5.0A
T10A,250V~
1
2
3
1
2
3
CN309
(YEL)
1
2
3
1
2
3
REDWHI
H M L UL
1. indicates the terminal block, letter at inside indicates the terminal number.
2. A dotted line and broken line indicate the wiring at site.
3. indicates the control P.C. board.
4. When attaching a drain pump, exchange CN030 connector with a connector 
of the float switch.
5. A part is connected to the terminal block. 
When exchanging to the outside static pressure necessary at the local site, 
check the terminal No. and lead color of the fan motor in the below diagram, 
and then exchange the lead wire indicated by the arrow mark ( ),
6. Pay attention to change static pressure because the outside static pressure of 
H tap in 50 or 60Hz.
PMV
(Option)
CN01
(WHI)
CN02
(BLU)
WHI
W
HI
RE
D
G
RY
W
HI
RE
D
B
LU
O
R
N
B
LK
B
R
N
GRY
YEL
RED
REDRED F
RED
WHI
43F1
6
4
CN03
(RED)
MCC-1401
Network adaptor 
(Option)
1 2
1 2
1 2
1 2
X Y
3 3
2
1 1
43F1
Spark
killer
8 7
43F1
5
3
1 2 3 4
1 2 3 4
F1 F2 F3 F4
RC
FM
WHI
BLK
BLU
ORN
BRN
GRY
RED 49F
Indoor control P.C. board
Closed 
end 
connector
Closed end 
connector
Wired for MMD-AP0481 only
(BRN Wire)
Motor over heating protection switch
Color 
indication
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GRY : GRAY
PNK : PINK
ORN : ORANGE
BRW : BROWN
GRN : GREEN
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
CN01
(WHI)
CN02
(YEL)
Sub P.C. board
MCC-1520Flow selector 
unit earth 
screw
19
M
o
d
el: M
M
D
-A
P
0721H
, A
P
0961H
FM
RC
TR
TA
TC1,TC2,TC3
RY005~007
RY001
RY002
PMV
F1~3
43F1,43F2
DM
FS
Fan motor
Running capacitor
Transformer
Indoor temp sensor
Temp sensor
Fan motor control relay
Louver control relay
Drain control relay
Pulse motor valve
Fuse for fan motor
Fan motor control relay
Drain pump motor
Float switch
Sold separately
Symbol Parts name
1. Indicates the terminal bolock,letter.
 Letter at inside indicates the terminal number.
2. A dotted line and broken line indicate 
 the wiring at side.
3. indicate the control p.c. board.
4. When installing the drain pump connector
 the froat switch connector to CN030 connector.
5. Position is connected to terminal block when change to 
 static pressure. Exchange the lead wire of arrow 
 position after check the terminal number as figure 
 and lead wire's color of fan motor.
6. When midifiy the high tap, to care the static pressure are
 differ by 50Hz or 60Hz.
CN080
(GRN) PNL
EXCT
2
3
1
2
2
3
3
4
4
5
5
6
1
1
2
2 2
3 3 3
4
4 4
5
5 56
6 61
1 1
CN073
(RED) 2
1
FILTERCN070(WHI)
CN081
(BLK)
CN082
(BLU)
2
1
1
1
2 3
3
CN100
(BRW)
1
1
2
2
CN101
(BLK)
CN030
(RED)
TC1TC2
1
1
2
2
CN102
(RED)
TCJ
1
1
2
2
CN104
(YEL)
TA
PMV
1
1
3
3
FS
5 3 17
7
9
9 5 3 1
RY007P301
(BLK)
RED
RED
Spark Killer
W
H
I
W
H
I
RED
YEL
BLK
WHI
GRY
RED
BLU
ORN
RY004
(GRY)
CN304
(YEL)
CN309
FUSE
T5.0A 250V~
RY006
RY005
H M L UL
3
1
3
1
3
1
3
1
3
1
6
8
7
2
1
1
1
2
21 2
1
1
2
2
1
1
2
X Y
2
3
2
1 1
3
1
1 2
3
3 1 2 3 4 5 1 2 3 4 5 6 1 2 1 23 4 5 6 1 2 3 4 5 6
1 2 3 4 5 6
CN066
(WHI)
CN067
(BLK)
AC IN RED
WHI
CN044
(BRW)
EMG
Remote Controller
Power supply
single phase
220-240V 50Hz
220V 60Hz
Indoor unit
earth screw
Closed-end
connector
Closed-end
connector
Line Filter
WHI
RED
RED
WHI
R
E
D
W
H
I
W
H
I
CN01(WHI)
CN03(RED)
CN02
(BLU)
CN040
(BLU)
CN041
(BLU)
CN050
(WHI)
CN061
(YEL)
CN032
(WHI)
FAN
DRIVE
OPTION
CN060
(WHI)
B
LU
B
LU
B
LK
B
LK
RCCO
TR
U1 U2 A B
Network Adapter
(Option)
Control P.C. board
for Indoor unit
MCC-1403
MCC-14011
1
2
2
CN1
1
1
3
3CN074
(WHI)
CN075
(WHI)
Power supply
circuit
TR
DP
CN068
(BLU)
LM
CN033
(GRN)
FAN
CN083
(WHI)
RY002
1 3
RY001
R(L) S(N)
1
1
3
3
DM
(Option)
43F243F1
49F
F1 T10.0A, 250V~
T10.0A, 250V~
T10.0A, 250V~
RED
F2
RED
F3
RED
7
8
5
3
43F1
7
8
5
3
43F2
FAN3
4P
(RED)
RC
ORW
RED
RED
ORW
ORW
Y
E
L
Y
E
L
W
H
I
R
E
D
G
R
Y
W
H
I
R
E
D
G
R
Y
B
LU
O
R
N
1 2 3 4
1 2 3 4
FM3
F1 F2 F3 F4
6
4
43F2
FAN2
4P
(BLU)
RC
Y
E
L
W
H
I
R
E
D
G
R
Y
W
H
I
R
E
D
G
R
Y
B
LU
O
R
N
1 2 3 4
1 2 3 4
FM2
F1 F2 F3 F4
6
4
43F1
FAN1
4P
(WHI)
RC
Y
E
L
W
H
I
R
E
D
G
R
Y
W
H
I
R
E
D
G
R
Y
B
LU
O
R
N
1 2 3 4
1 2 3 4
FM1
F1 F2 F3 F4
5
Motor over heating
protection switch
Fan motor inside
wiring diagram
Color 
indication
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GRY : GRAY
PNK : PINK
ORN : ORANGE
BRW : BROWN
GRN : GREEN
A
U1 U2
Outdoor unit
F1
F2
F3
Terminal
No.
YEL
BLU
ORN
Fan motor
wiring
69(7)
137(14)
196(20)
Static pressure
Pa (mmAg)
Setting from factory
Note
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
CN01
(YEL)
CN02
(YEL)
Sub P.C. board
MCC-1520
S
.K
S
.K
20
2-1-6.
U
n
d
er C
eilin
g
 Typ
e
M
o
d
el: M
M
C
-A
P
0151H
, A
P
0181H
, A
P
0241H
, A
P
0271H
, A
P
0361H
, A
P
0481H
CN104
(YEL)
CN102
(RED)
CN101
(BLK)
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1
1
1
2
2
2
3
3
3
4
4
4
5
5
5
6
6
6
6
1 2 3 4 5
1 2 3 4 5
1 3
1 2 3
CN34
(RED)
FS
CN33
(WHI)
CN82
(BLU)
5 4 1
5 4 3 2 1
CN334
(WHI)
DC20V
CN333
(WHI)CN68
(BLU)
CN304
(GRY)
CN66
(WHI)
CN67
(BLK)
Indoor control P.C. board
1
2
1
2
TA
1
2
1
2
TCJ
1
2
1
2
TC2
CN80
(GRN)
PNL
EXCT
1
2
CN73
(RED)
1
2
FILTER
Option GRLFandrive
CN70
(WHI)
CN20
(BLU)
1
2
3
1 2 3 4 5
1 2 3 4 5
LM
1 2 3 4 5
CN60
(WHI)
CN32
(WHI)
CN61
(YEL)
CN50
(WHI)
Adpter for wireless
remote controller
CN309
(YEL)
CN41
(BLU)
T10
1 21 2 3 4 5 6
CN81
(BLK)
1 2 3 4 51 2 3 4 51 2 31 2 3
1 2 3
CN40
(BLU)
4 5 6
1 2
1 2
RY302
1
2
3
1
2
3
1
2
3
1
2
3
1
2
1
2
1
2
1
2
1
33
1
2
3
RY303
~ +
~ –
Fuse
T6.3A
250V~
Fuse
T3.15A
DC15V
DC12V
DC7V
P301
BLK
RED
WHI
Closed end
terminal
R
E
D
W
H
I
Wired remote 
controller
Outdoor unit 1 2
BAU2U1
U2U1
1 2
CN1
(WHI)
CN001
(WHI)
Indoor unit
Earth screw
WHI BLK BLKWHI
BLK
TR
BLU
WHI
BLU
BLK
BLK
DM
FM
Power
supply
circuit
Motor drive 
circuit
CN01
(WHI)
CN02
(BLU) CN03
(RED)
Network 
adaptor 
(Option)
1 2
1 2
1 2
1 2
X Y
3 3
2 2
1 1
Network 
adaptor 
P.C. board
Color identification
1. indicates the terminal block, letter at inside 
indicates the terminal number.
2. A dotted line and broken line indicate the wiring at site.
3. indicates the control P.C. board.
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BRW : BROWN
BLK : BLACK
GRY : GRAY
PNK : PINK
ORN : ORANGE
GRN : GREEN
S(N)R(L)
Power supply
single phase
200-240V 50Hz
 200V 60Hz
Symbol
FM
TA
TC,TC2,TCJ
LM
RY302
DM
FS
Parts name
Fan motor
Indoor temp sensor
Temp sensor
Louver motor
Drain control relay
Drain pump motor
Float switch
Sold 
separately
PMV
Flow selector 
unit earth 
screw
CN100
(BRW)
1
2
1
2
33 TC1